Chock-block



F. ARN.

CHUCK BLOCK.

APPLICATION man AUG-9, 1920.

Patented Dec. 2U, 1921..

Inventar:

fi e A; 782,

' vention, I provide aseries of nail holes inobjects is to provide means which will enable FRED ARN, 0F GIIATTANOOGA, TENNESSEE, ASSIGNOR TO J. M. CARD TIUMBER 00., 0F

CHATTANOOGA, TENNESSEE, A CORPORATION OF TENNESSEE CHOCK-IBLOCK.

Specification of Letters Patent.

Patented Dec. 20,1921.

Application filed August 9, 1920. Serial No. 402,126.

T 0 all whom it may concern:

Be it known that I, FRED Ann, a citizen of the United States, and resident of Chattanooga, Tennessee, have invented certain new and useful Improvements in Chock-Blocks, of which the following is. a specification.

My invention relatesto chock blocks for use in transporting automobiles, to set against the wheels for retaining the automobile against displacement, on the floor of the car, used in shipping automobiles from the factory.

In the accompanying drawings:

Figure l is a perspective view of a CllOCK block embodying the invention.

Fig. 2 is a rear view.

Fig. 3 is a side elevation.

In these drawings the chock block is represented as of substantially a known form as to its general characteristics. One of my unskilled labor to be employed in afiixing the chock blocks in place and will insure uniformity in the performance of the work in this particular. In carrying outgthe in- .the sides of the block indicated at 1, these nail holes inclining downwardly and toward. the rear face 2 of the block, and therefore in 'the directiomgenerally speaking, in which the strain is imposed upon the block from the wheel'of the automobile. The front face of the block is curved longitudinally and also this face is grooved laterally so as to fit the rounded surface of the tire.

At the rear of the block I provide means whereby the workman will be guided in his application of the nails, this means consist ing of a plurality of recesses 3 having indents or holes 4 to receive. the nail.

The recesses are formed by a boring tool and this tool is set at an inclination to the 'rear face of the block in order to form these recesses, and hence the walls of these recessesare curved to conform to the boring tool and walls -5are left between them which will serve to preserve the strength of the block at these points and prevent splitting.

angle to insure its full holding quality, The

nail holes which are formed in the side of the block insure the placing of the nails at the proper angle and at the proper height from the bottom of a block so that the manufacturer is enabled to determine for himself where the nail shall go through and the presence of these nail holes will insure uniformity of work on the part of the workman, and will enable .him to carry on the work with greater rapidity than otherwise would be the case. Were these nail holes not provided, a careless workman might start them at a point only slightly above the lower face of the block or even though he placed the point of the nail at the proper height on the smooth side of the'block, the

nail might slip when the first blow was applied and not catch into the wood until its point had reached a position considerably below the proper point for nailing as determined by the manufacturer of the block.

lit will be seen from the'above that with this block, the side nails incline downwardly and rearwardly, while the rear nails incline downwardly and forwardly and the combined effect ofthese two sets of nails is to securely lock the block to the floor of the car.

I claim as my invention: a A chock-block for automobiles or the like consisting of a solid block of wood, having a flat horizontal base and parallel sides perpendicular to the base, said block having in 

